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// Scilab code Ex5.24: Pg:232 (2008)
clc;clear;
Lambda = 5000e-08; //Mean wavelength of light, cm
theta = 10e-03; // Smallest angular separation resolvable by a telescope objective, degree
theta = %pi/180*(1/1000); // The smallest angular separation resolvable by a telescope objective, radian
// As theta = (1.22*Lambda)/a, solving for a
a = 1.22*Lambda/theta; // Diameter of an objective of the telescope, cm
printf("\nThe diameter of an objective of the telescope = %3.1f cm", a);
// Result
// The diameter of an objective of the telescope = 3.5 cm
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